b04445d4a8
C++20 isn't final quite yet, but all that remains is formalities, so let's go ahead and change all the references. I think for the next C++ standard we can just call it C++23 rather than C++2b, since the committee has been consistent about time-based releases rather than feature-based. gcc/c-family/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * c.opt (std=c++20): Make c++2a the alias. (std=gnu++20): Likewise. * c-common.h (cxx_dialect): Change cxx2a to cxx20. * c-opts.c: Adjust. * c-cppbuiltin.c: Adjust. * c-ubsan.c: Adjust. * c-warn.c: Adjust. gcc/cp/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * call.c, class.c, constexpr.c, constraint.cc, decl.c, init.c, lambda.c, lex.c, method.c, name-lookup.c, parser.c, pt.c, tree.c, typeck2.c: Change cxx2a to cxx20. libcpp/ChangeLog 2020-05-13 Jason Merrill <jason@redhat.com> * include/cpplib.h (enum c_lang): Change CXX2A to CXX20. * init.c, lex.c: Adjust.
31 lines
582 B
C
31 lines
582 B
C
// P0784R7
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// { dg-do compile { target c++20 } }
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// { dg-additional-options "-fdelete-null-pointer-checks" }
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struct S
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{
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constexpr S () : s (0) { s++; }
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constexpr S (int x) : s (x) { s += 2; }
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constexpr ~S () { if (s != 35) asm (""); s = 5; }
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int s;
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};
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constexpr bool
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foo ()
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{
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S *p = new S (7);
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if (p->s != 9) return false;
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p->s = 35;
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delete p;
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p = new S[3] { 11, 13, 15 };
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if (p[0].s != 13 || p[1].s != 15 || p[2].s != 17) return false;
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p[0].s = 35;
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p[2].s = 35;
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p[1].s = 35;
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delete[] p;
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return true;
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}
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constexpr bool a = foo ();
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static_assert (a);
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